JP2012003250A - 液晶表示装置 - Google Patents
液晶表示装置 Download PDFInfo
- Publication number
- JP2012003250A JP2012003250A JP2011109173A JP2011109173A JP2012003250A JP 2012003250 A JP2012003250 A JP 2012003250A JP 2011109173 A JP2011109173 A JP 2011109173A JP 2011109173 A JP2011109173 A JP 2011109173A JP 2012003250 A JP2012003250 A JP 2012003250A
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- Prior art keywords
- liquid crystal
- layer
- electrode layer
- common electrode
- film
- Prior art date
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- LIVNPJMFVYWSIS-UHFFFAOYSA-N silicon monoxide Chemical compound [Si-]#[O+] LIVNPJMFVYWSIS-UHFFFAOYSA-N 0.000 description 1
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- 229910052708 sodium Inorganic materials 0.000 description 1
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- 229910001936 tantalum oxide Inorganic materials 0.000 description 1
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- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- QQQSFSZALRVCSZ-UHFFFAOYSA-N triethoxysilane Chemical compound CCO[SiH](OCC)OCC QQQSFSZALRVCSZ-UHFFFAOYSA-N 0.000 description 1
- 229910052725 zinc Inorganic materials 0.000 description 1
- OYQCBJZGELKKPM-UHFFFAOYSA-N zinc indium(3+) oxygen(2-) Chemical compound [O-2].[Zn+2].[O-2].[In+3] OYQCBJZGELKKPM-UHFFFAOYSA-N 0.000 description 1
Classifications
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1334—Constructional arrangements; Manufacturing methods based on polymer dispersed liquid crystals, e.g. microencapsulated liquid crystals
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1343—Electrodes
- G02F1/134309—Electrodes characterised by their geometrical arrangement
- G02F1/134336—Matrix
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/133371—Cells with varying thickness of the liquid crystal layer
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- Physics & Mathematics (AREA)
- Nonlinear Science (AREA)
- Chemical & Material Sciences (AREA)
- Mathematical Physics (AREA)
- Crystallography & Structural Chemistry (AREA)
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- Optics & Photonics (AREA)
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Abstract
【解決手段】高分子分散型液晶(PDLC)又は高分子ネットワーク型液晶(PNLC)を液晶層に用いて、液晶による光の散乱光を利用して白表示(明表示)を行う。画素電極層を、第1の共通電極層と第2の共通電極層とで挟持された液晶層中央に配置することによって、第1の共通電極層、液晶層、及び画素電極層からなる第1の液晶素子と、画素電極層、液晶層、及び第2の共通電極層からなる第2の液晶素子という2つの光学素子を積層する構造とすることができる。
【選択図】図1
Description
本明細書で開示する発明の構成の一形態である液晶表示装置を、図1乃至図3を用いて説明する。図1(A)は液晶表示装置の平面図であり、図1(B)、図2(A)乃至(C)、及び図3は図1(A)における線A1−A2の断面図に対応する。なお、図1(A)の平面図は第1の基板200側を示したもので、液晶層208、第2の共通電極層231、第2の基板201は省略している。図1乃至図3において液晶層208に対して第2の基板201側が視認側であり、第1の基板200側が視認側と反対側である。
本明細書に開示する発明を適用したアクティブマトリクス型の液晶表示装置の例を、図4を用いて説明する。
本実施の形態では、実施の形態1又は実施の形態2に組み合わせることでさらに低消費電力化を図れる液晶表示装置の駆動方法を示す。実施の形態1と同一部分又は同様な機能を有する部分、及び工程は、実施の形態1と同様に行うことができ、繰り返しの説明は省略する。また同じ箇所の詳細な説明は省略する。
本実施の形態では、本明細書に開示する液晶表示装置に適用できるトランジスタの例を示す。本明細書に開示する液晶表示装置に適用できるトランジスタの構造は特に限定されず、例えばトップゲート構造、又はボトムゲート構造のスタガ型及びプレーナ型などを用いることができる。また、トランジスタはチャネル形成領域が一つ形成されるシングルゲート構造でも、2つ形成されるダブルゲート構造もしくは3つ形成されるトリプルゲート構造であっても良い。また、チャネル領域の上下にゲート絶縁層を介して配置された2つのゲート電極層を有する、デュアルゲート型でもよい。なお、図7(A)乃至(D)にトランジスタの断面構造の一例を以下に示す。
上記実施の形態2乃至4において、トランジスタの半導体層に用いることのできる例として酸化物半導体を説明する。
本実施の形態は、酸化物半導体層を含むトランジスタ、及び作製方法の他の一例を図8を用いて詳細に説明する。上記実施の形態と同一部分又は同様な機能を有する部分、及び工程は、上記実施の形態と同様に行うことができ、繰り返しの説明は省略する。また同じ箇所の詳細な説明は省略する。
上記実施の形態1乃至4において、トランジスタの半導体層に用いることのできる他の材料の例を説明する。
液晶表示装置の一形態に相当する液晶表示装置の外観及び断面について、図5(A)(B)(C)及び図6を用いて説明する。図5(A)(B)(C)は、第1の基板4001上に形成されたトランジスタ4010、及び液晶層4008を含む液晶素子4013を、第2の基板4006との間にシール材4005によって封止した、液晶表示装置の上面図であり、図6は、図5(A)のM−Nにおける断面図に相当する。
本明細書に開示する液晶表示装置は、さまざまな電子機器に適用することができる。特に本明細書に開示する液晶表示装置は、光散乱によって白を表示し、紙面のような良質な画質を有するので、使用者の目に優しく、電子ペーパーとして好適に適用することができる。電子ペーパーは、情報を表示するものであればあらゆる分野の電子機器に用いることが可能である。例えば、電子ペーパーを用いて、電子書籍(電子ブック)、ポスター、電車などの乗り物の車内広告、クレジットカード等の各種カードにおける表示等に適用することができる。
Claims (6)
- 高分子分散型液晶材料を含む液晶層を挟持する第1の基板及び第2の基板と、
前記第1の基板と前記液晶層との間に設けられた平板状の第1の共通電極層と、
前記第2の基板と前記液晶層との間に設けられた平板状、かつ透光性の第2の共通電極層と、
前記第1の共通電極層と前記液晶層との間に積層して設けられる開口を有する構造体及び画素電極層とを有し、
前記液晶層において前記画素電極層は前記構造体によって、前記第1の共通電極層と前記第2の共通電極層との間に配置されることを特徴とする液晶表示装置。 - 高分子分散型液晶材料を含む液晶層を挟持する第1の基板及び第2の基板と、
前記第1の基板と前記液晶層との間に設けられた平板状、かつ透光性の第1の共通電極層と、
前記第2の基板と前記液晶層との間に設けられた平板状、かつ透光性の第2の共通電極層と、
前記第1の共通電極層と前記液晶層との間に積層して設けられる開口を有する構造体及び画素電極層と、
前記第1の基板と前記第1の共通電極層との間に設けられた着色層とを有し、
前記液晶層において前記画素電極層は前記構造体によって、前記第1の共通電極層と前記第2の共通電極層との間に配置されることを特徴とする液晶表示装置。 - 請求項2において、前記着色層は黒色層であることを特徴とする液晶表示装置。
- 請求項1乃至3のいずれか一項において、前記画素電極層は反射性であることを特徴とする液晶表示装置。
- 請求項1乃至3のいずれか一項において、前記画素電極層は透光性であることを特徴とする液晶表示装置。
- 請求項1乃至5のいずれか一項において、前記第1の基板と、前記第1の共通電極層との間にトランジスタが設けられ、
前記トランジスタは、前記画素電極層と電気的に接続していることを特徴とする液晶表示装置。
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JPWO2012111626A1 (ja) * | 2011-02-14 | 2014-07-07 | 株式会社 オルタステクノロジー | 液晶表示装置 |
JP6097565B2 (ja) * | 2011-02-14 | 2017-03-15 | 株式会社 オルタステクノロジー | 液晶表示装置 |
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KR20110128146A (ko) | 2011-11-28 |
KR101846147B1 (ko) | 2018-04-06 |
US20110285940A1 (en) | 2011-11-24 |
JP5727858B2 (ja) | 2015-06-03 |
US8547503B2 (en) | 2013-10-01 |
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